How can we improve Outlook on the web?

Keyboard shortcuts, e.g. Option+S

On Mac, Safari, noticed new shortcut Option+S which saves a form (e.g. calendar event), but I use this shortcut to write a special character, so in the middle of my writing the form gets saved & closed, but when I re-open the event - the text is missing, so it does not save it, too.

Prior to the "new Outlook" experience, when highlighting text and pressing Ctrl+K (to create hyperlink) it would auto populate the highlighted text as the value for "Text to display". This no longer works as expected and requires me to manually retype the text again. Please bring this feature back.

In most typing environments (including this window) I can <ctrl>-<shift>-<arrow keys> to select text, with the selection increasing word-by-word rather than character-by-character. But when I try to do this when composing an email in new Outlook, it only selects one word, then deselects it and selects the next word, and so on. Windows 10 (up to date as at 5/2/19), Lenovo ThinkPad E570, Firefox 64.0.2.